Have you tried calling “Retentions” on 150 or 0345 454 1111 - options 1-1-4-5 "Thinking of leaving" - they are open 8am until 10pm [calling early morning is usually best - - but not on Mondays!] you will then usually get a UK call centre who’s staff are more informed and helpful. Tell them you are thinking of leaving for Sky/BT because of their great introductory price deals - and they will immediately default to offering you the best deal they can if you sign a new 12mo contract. If its not good enough just say no and try again another day. Your final option is then to "cancel" and be ready to change provider - they will then almost certainly call you back during the 30-day notice period to offer you one final deal. Take it or leave it.
-------------------- John --------------------
My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.